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CVE-2021-22569

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CVE-2021-22569

Published: Jan 7, 2022

Modified: Apr 21, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.

VendorProductVersions

Google LLC

protobuf-java

affected
unspecified - < 3.16.1
affected
unspecified - < 3.18.2
affected
unspecified - < 3.19.2

Google LLC

protobuf-kotlin

affected
unspecified - < 3.18.2
affected
unspecified - < 3.19.2

Google LLC

google-protobuf [JRuby Gem]

affected
unspecified - < 3.19.2

Weaknesses (CWE)

CWE-696

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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